單項(xiàng)選擇題Hygroscopic cargoes should be ventilated when().

A.going from a warm to a cold climate
B.the dew point of the outside air is greater than the dew point of the air in the hold
C.the dew point of the air in the hold is very low
D.the outside dew point is 16℃ and the cargo temperature is 12℃


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2.單項(xiàng)選擇題Green lights may appear on().

A.horizontally banded buoys
B.vertically striped buoys
C.yellow buoys
D.spherical buoys

3.單項(xiàng)選擇題During loading or discharging,the tallymen must make contact with()on duty so as to solve problems in time.

A.ship owner
B.ship’s officers
C.shippers
D.consignors

4.單項(xiàng)選擇題Can you tell me something about the tallying methods at your port?().

A.Certain
B.Be certain
C.Sure
D.Be sure

5.單項(xiàng)選擇題By day,the horizontal motion of a white flag,or arms extended horizontally,by a person on the beach indicates().

A.Haul away
B.Tail block is made fast
C.Negative
D.Affirmative